Nuclear superfluidity for antimagnetic rotation in 105Cd and 106Cd

Zhen-Hua Zhang (张振华), Peng-Wei Zhao (赵鹏巍), Jie Meng (孟杰), Jin-Yan Zeng (曾谨言), En-Guang Zhao (赵恩广), and Shan-Gui Zhou (周善贵)
Phys. Rev. C 87, 054314 – Published 15 May 2013

Abstract

The effects of nuclear superfluidity on antimagnetic rotation bands in 105Cd and 106Cd are investigated by the cranked shell model with the pairing correlations and blocking effects treated by a particle-number-conserving method. The experimental moments of inertia and the reduced B(E2) transition values are excellently reproduced. Nuclear superfluidity is essential to reproduce the experimental moments of inertia. The two-shears-like mechanism for the antimagnetic rotation is investigated by examining the shears angle, i.e., the closing of the two-proton-hole angular momenta, and its sensitive dependence on nuclear superfluidity is revealed.

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  • Received 8 March 2013

DOI:https://doi.org/10.1103/PhysRevC.87.054314

©2013 American Physical Society

Authors & Affiliations

Zhen-Hua Zhang (张振华)1, Peng-Wei Zhao (赵鹏巍)1, Jie Meng (孟杰)1,2,3, Jin-Yan Zeng (曾谨言)1, En-Guang Zhao (赵恩广)1,4,5, and Shan-Gui Zhou (周善贵)4,5

  • 1State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
  • 2School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
  • 3Department of Physics, University of Stellenbosch, Stellenbosch 7602, South Africa
  • 4State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 5Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China

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Issue

Vol. 87, Iss. 5 — May 2013

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